The feature and functions of metal bellows compensators

Corrugated metal diaphragms are essential engineering components characterized by their corrugated or wavy pattern, typically made from materials like stainless steel. These flexible membranes are designed to respond to variations in pressure, temperature, and displacement within mechanical systems, making them invaluable for numerous applications. The corrugated structure allows them to flex while maintaining structural integrity, enabling precise control of fluid or gas flow in airtight conditions. Corrugated metal diaphragms are commonly employed in pressure sensors, control valves, and measurement instruments where their responsiveness to mechanical changes is essential for accurate data collection and regulation. They are renowned for their durability and resistance to corrosion, rendering them suitable for applications in demanding environments, including industrial, petrochemical, and sectors. Corrugated metal diaphragms play a pivotal role in safeguarding the performance, safety, and efficiency of various mechanical and industrial processes.

The working principle of metal corrugated pipe compensators is mainly to use their own elastic expansion function to compensate for the axial, angular, lateral, and combined displacement of pipelines caused by thermal deformation, mechanical deformation, and various mechanical vibrations. The compensation function has the functions of pressure resistance, sealing, corrosion resistance, temperature resistance, impact resistance, vibration reduction and noise reduction, reducing pipeline deformation, and improving pipeline service life. The application in pipeline operation can provide guarantees for the safe operation of pipelines. The metal corrugated pipe compensator is a flexible, thin-walled, horizontally corrugated device with expansion and contraction function, which is composed of metal corrugated pipes and components.

1、 Characteristics of Metal Bellows Compensators

A metal corrugated pipe compensator is a device composed of metal corrugated pipes and components that play a compensation function in the connection between power or thermal pipelines, equipment, and equipment. It can compensate for the thermal deformation, and mechanical deformation, and absorb various mechanical vibrations caused by the axial expansion and angle changes of the pipeline due to temperature differences, reducing the deformation stress of the pipeline and improving the service life of the pipeline. Compared with other types of compensators such as sleeve-type compensators, spherical compensators, and "π" type tension compensators, metal corrugated compensators have the characteristics of small size, simple installation, low cost, no structural leakage, and no need for maintenance.

2、 Classification of metal bellows compensators

Metal bellows compensators can be divided into axial, transverse, and angular types based on their different compensation functions and compensation forms. The axial type can be divided into ordinary axial type, unconstrained type, external pressure type, directly buried type, and pressure balanced type. The horizontal type can be divided into unidirectional horizontal type, universal hinge horizontal type, large pull rod horizontal type, and small pull rod horizontal type; Angular type can be divided into unidirectional and universal angular types.

3、 The Function of Metal Bellows Compensator

1. Compensate for axial, horizontal, and angular cold and hot deformation of the absorption pipeline.

2. The expansion and contraction of metal corrugated pipe compensators facilitate the installation and disassembly of valve pipelines.

3. Absorb equipment vibration and reduce the impact of equipment vibration on pipelines.

4. Absorb the deformation of pipelines caused by earthquakes and subsidence.